Improvement in grain scourers, smutters, and separators



I 4Shveefsv-Sheet1'.- J. C. HUNT 8L W. W. INGRAHAM.

Improvement in Gran-Scourer, Smutter, and Separator.

N0, 130,804, l Patented Augy.27,1r872.

l Invellorz Wnesses MF l 4Sheets--SmeetZl l J. C. HUNTXL W. W. INGRAHAM.

Improvement in Grain-Scourer, Smutter, and Separator.

N0', 130,804. Patented Aug. 27. 1872.

Y 4Sheets--Sheet3- J. C. HUNT 8L W. W. INGRAHAM. l

improvement in Grain-Scaurer, Smuttenand Separator. No. 130,804.Paten-.red Aug. 21,1372,

Sheets-Sheet4 J. C. HUNT 8L W. W. INGRAHAM.

mprovement in Grain-Scourer, Smutter, and Separator.

No. 130,804. Patented Aug..27,1872.

Uurrnn STATES PATENT QFFICE.

JOHN C. HUNT AND WILLIAM W. INGRAHAM, OF CHICAGO, ILLINOIS 5 SAID HUNTASSIGNS'HIS RIGHT TO SAID INGRAHAM.

IMPROVEMENT IN GRAIN SCOURERS, SMUTTERS, AND SEPARATORS..

Specification forming part of Letters Patent No. 130,804, dated August27, 1872.

ers, and Separators, of which the following is a specification,reference being had to the accompanying drawing.

Nature and Object of om Invention.

Our invention relates to that class of machines in which the grain isscoured by friction and the dust separated from the, grain, as well asthe light material, and the grain also separated into different grades,according to its weight, by a suction-blast drawn through the grain andour invention consists in the devices, hereafter fully described, forregulating the flow of A grain from the scouring-cylinder, and in thechambers and connecting-pipes at the top of the machine. The grain owsautomatically from the scouring-cylinder by its weight-opening thevalve, and the valve may be regulated so as to hold a greater or lessquantity of grain in the scouring-cylinder, and the light grain andsmall seeds that are carried over into the chamber E are divided intofour grades, and the dust is blown out through the fan at I2. y y

Description of the Drawing.

General Description.

The same letters of reference are used to represent the correspondingparts in the different iigures. i

H represents the scouring-cylinder, into which the grain is admittedthrough the hopper I. J are beaters, attached to the shaft K, by whichthey are made to revolve to scour the grain in the cylinder H. The shaftKhas bearings, as clearly shown in the drawing,

and is driven by a band running on either of the pulleys L. My inventiondoes not relate to the scouring-cylinder or its beaters, therefore anywell-known apparatus for holding and scouring the grain may beusedproviding that there are openings in thebottom of the cylinder for theadmission of air, as hereafter described, and an opening for the escapeof the grain. M is a case inclosin g the scouring-cyl-4 inder H, formingan air-space between the two. O are openings for the admission of airinto the bottom of the scouringcylinder H. P are openings for theadmission of air into the airspace between the cylinders H and M.

rPhe air is taken through the openings O from the chamber S; and A is asliding-valve tol regulate the admission of air into the chamber S. Byopening or closing the valve A, by slidin git along, the quantity of airthat is allowed to pass into the bottom ofthe cylinder H and 'throughthe grain, while being scoured, is regulated. B is apeculiarly-constructed, automatic, weighted valve that regulates theiiow ofthe grain from the scouring-cylinder, and it may be so regulatedby adjusting a weight that the grain will at all times be held in thescouring-cylinder up to any desired height. This valve is made in theform of a box, open at the top, and with an opening, B1, near itsbottom, as shown. It is hung rigidly on a shaft, B2, extending across iton one side near its top, which shaft extends out through the case ofthe machine, and is bent so as to re-A ceive a weight, as atBa, whichweightmaybe adjusted thereon to regulate the weightrequired in the box Bto turn the shaft. If the weight is placed near the end of B3 it turnsthe shaft B2, and swings thebox B so that the extended bottom of the boxswings up against the side of the spout B, and closes the opening B5 sothat no grain can flow from the cylinder H through said opening untilthe grain rises high enough in the said scouring-cylinder H so that theweight of the grain resting on the valve B shall be sufficient to raisethe weight on B3, and thereby turn the box-valve and open the openingB5. If a less height of grain is desired in the scouring-cylinder H, soas to have it run through the machine with less scouring, the weight onB3 is adjusted so that a less weight of grain in the cylinder H willopen the valve B, as above described. C is a chamber at the top of thescouringcylinder H, and beneath the hopper I, into which the dustscouredfrom the grain in the scouringcylinder is drawn by the currentsof air passing up through the scouring-cylinder and the air-spacesurrounding it. C is a pipe leading from the chamber C to the chamber D.The grain is fed into the machine through one end ofthe bent pipe R, itbeing introduced at R1, from whence it falls into the hopperRZ, and thenthrough the hopper I into the scouringcylinder; the other end of thebent pipe or spout R extends down and opens into the box D. R3 is aslide-valve, for opening and closing the tube R so as to regulate thedraft of air that is drawn through the grain as it is being admittedinto the machine, as hereinafter described. B4 is a tube or spout,through the lower end of which the scoured y grain which iows from thesmutting-cylinder H passes; and that also extends up and opens into thechamber D, as clearly shown in Figs. l and 2.

It Will be observed that the gleanings taken from the grain through thetube It before it passes into the machine, and also the smut and dusttaken from it while it is in the scouring-cylinder, as well as the lightscoured grain A and dust taken from it in the pipe B4, are all drawninto the chamber D; but the light scoured grain is brought into saidchamber at the side opposite from where the gleanings and unscouredgrain that are brought in the tube R enter the chamber. All thismaterial passes down from the chamber D into the chamber E, and theheaviest of it will fall to the bottom of the chamber and escape at theopenings T, while the lighter material will be carried further over andfall down and escape at the openings T1, and the very lightest material,such as the smut and du st7 will be drawn up into the fan and escape atT2. U is a central double-inclined partition inthe bottom of the box E;and U is a similar transverse pardriven by the pulley F on its shaft tocreate a suction-draft through the various tubes above described, andthrough the chambers D and E, and out at the exit T2, as indicated bythe arrows in the drawing. Vis a slide, for opening and closing thebottom of the'fan-drum4 V', for the purpose of regulating the draft ofair. W are cross-pieces across the top of the scouring-cylinder, andserve to hold it in place, there being two of them, crossing each otherat right angles. The sectional drawing being central, pass through thosecross-pieces and give the scouring-cylinder the appearance of notopening into the chamber C, when, in fact, it opens into said chamber,it having no other -cover excepting said cross-pieces W. Wl is a frame,made of wood or other suitable material that is strong and durable.

Having thus fully described the construction and operation of ourinvention, what we claim, and desire to secure by Letters Patent, 1s

l. The automatic valve B, in vcombination with the discharge-chute andscouring mechanism, all constructed and operating substantially asspecified and shown.

2. The combination of the chamber D and the air-pipes R, C', and B4,when arranged as and for the purposes described.

3. The combination of the chambers D and E, the longitudinal andtransverse inclined partitions U and U', and thefan F, constructed andarranged as and for the purpose set forth.

JOHN C. HUNT. WILLIAM W. INGRAHAM.

Witnesses:

F. F. WARNER, HEINR. F. BnUNs.

